fix brackets
Merge pull request #337 from squirrelo/url-escape

fix brackets
BUG: due to @wasade's merge of #323 prematurely, the open humans import blocks tornado from starting. this is ducttape.
Merge pull request #338 from wasade/block_open_humans_import

BUG: due to @wasade's merge of #323 prematurely, the open humans import ...